農田黑土磷庫演化過程及其驅動機制的研究.pdf

1、東北農業(yè)大學碩士學位論文農田黑土磷庫演化過程及其驅動機制的研究姓名：金彩霞申請學位級別：碩士專業(yè)：土壤學指導教師：許景鋼2003.6.1東北農業(yè)大學農學頊士學位論文n豫researchwasstudiedonphophoruspoolofdifierentreclam撕onblacksollatZIⅢ冒Ⅷ唱farm，thesoilwasselectedin9kin2andtheslopewas13。throughinvestigatio

2、n11k∞nseparatelywasvirgin、reclamationof2、mclamationof8、reclamationof15、reclamationof30、reclamationof50thesollsampleof100reclamationwassampledfromHailunexperimentstation11他studywasonthechangecharacteristicsofsoilphosphoru

3、spoolofprofileofdifferentreclamationwhichtofindchangeregulationofphosphoruspoolofagriculturalblacksoilfromtimeandspaceTheotherexperimentwasofflongtermexperimentofhanlunexperimentstation刀磚studywasonthechangesoftotalP、avai

4、lableP、organicPand6inorganicPondifferentagriculturalmethods，whichcancomparetheeffectofdifferentagriculturalmethodstoblacksoilphosphorusp001啊1echangeoftotalPwas鋤allwithreclamationThequantityofavailablePmarkedlyincreasedwi

5、threclamationfortheeffectoffertilizerTheamountoforganicPmarkedlydecreasedwithreclamation，whichwassamewiththepopularstandpoinLthatisthecontentoforganicPwasreducedfortheorganicmatterwasdecomposedsincethevirginwasreclaimed1

6、1“changesof6differentphosphorusweredifferentafterreclamationfortheyhavedifferentquanli似mquantityofCa2Pwasaffectedeasilybyfertilizerforitschemicalnaturewasactiveandwasincreasedwithreclamationwhichwasincreased300123％compar

7、edtovi嘻in11”amountofCagPwasincreasedafterreclamationandincreased489128％comparedtovirginItsamountkeptstableafteraccrtainreclamation111equantityofAI—Pwasincreased187—351％comparedtovirginafterreclamationTheabsoluteandrelati

8、veamountofAlPwasincreasedwithreclamationTheregulationofFePamountin0160cmwasnotobviousafterreclamationTheeffectofreelamationto0pandCal0PwassmallforthehchemicaIcharacteristicwerestableAbovealI’thechangeofphosphorusthatwasu

9、sedeasilybycropandthephosphorusthatwasfirstchangedintoafterfertilizerwasapplidedintosoilButthechangeofphosphorusthatwasuseddifficulflybycropforitscharacteristicwasstable11他amountofavailableP、Ca2PandAIPdecreasedfromsurfac

10、etolowerlevelanddecreasedtothelowestat2040cmor4060erathenbegantoincreasedTheamountoftotalPandorganicPdecreasedfromsurfaceto4060cm(totalP1or6080cm100一120cm(organicP、wherethecontentwerelowestandthentheamountkeepstableThequ

11、antityofCarponthewholeprofilewastown他amountofCarPofvirgin、reclamationof2、reclamationof8、reclamationof30onsomeprofilewere0andweremostlytinder2040cmn∞changeregulationofOPandCaloPwasnotobviousTheeffectoffertilizertootherfor